Which protein powder to buy?

Im on the last few scoops of ON vanilla whey, so I need to get more, so what do you people recommend for post workout? I bought a couple tubs of the syntha-6 for the midnight shake, but not sure what to get for post workout, and I like to throw a scoop in during meals too. So which would you buy:

I shop around for whatever is cheapest since in the long run your not gonna notice any difference besides taste. I just order LG's Lipotropic Protein to try something different. NP has ATW concentrate for 29.99 which is a great price. Ultimate Whey Supreme you can get for about 27.99. I scour the internet for the best price I can find.

I vote for the ON as well. But I switched from 100% Whey to ON Nitrocore 24 it's 10 different protein sources and continues to feed your muscles from the moment you drink it to hours after. Seems like a better idea instead of buying diff proteins for diff times of day. imo.